Chemistry

Calculate the pH of the following solutions: a) 2 g of TlOH dissolved in water to give 2 litre of solution. b) 0.3 g of Ca(OH) 2 dissolved in water to give 500 mL of solution. c) 0.3 g of NaOH dissolved in water to give 200 mL of solution. d) 1 mL of 13.6 [...]

It has been found that the pH of a 0.01 M solution of an organic acid is 4.15. Calculate the concentration of the anion, the ionization constant of the acid and its pK a It has been found that the pH of a 0.01 M solution of an organic acid is 4.15. Calculate the concentration [...]

The ionization constant of acetic acid is 1.74×10 −5. Calculate the degree of dissociation of acetic acid in its 0.05 M solution. Calculate the concentration of acetate ion in the solution and its pH. The ionization constant of acetic acid is 1.74×10 −5. Calculate the degree of dissociation of acetic acid in its 0.05 M [...]

The first ionization constant of H2S is 9.1×10 −8. Calculate the concentration of HS − ion in its 0.1 M solution. How will this concentration be affected if the solution is 0.1M in HCl also? If the second dissociation constant of H 2 S is 1.2×10 −13, calculate the concentration of S.2−under both conditions. The [...]

The ionization constant of phenol is 1.0×10 −10. What is the concentration of phenolate ion in 0.05 M solution of phenol? What will be its degree of ionization if the solution is also 0.01 M in sodium phenolate? The pH of a sample of vinegar is 3.76. Calculate the concentration of hydrogen ion in it. [...]

The ionization constant of HF,HCOOH and HCN at 298K are 6.8×10 −4,1.8×10 −4and 4.8×10 −9 respectively. Calculate the ioniation constants of the corresponding conjugate base. 1.8×10 −4and 4.8×10 −9 respectively. Calculate the ioniation constants of the corresponding conjugate base. HCOOH and HCN at 298K are 6.8×10 −4 The ionization constant of HF November 24, 2020 [...]

The pH of a sample of vinegar is 3.76. Calculate the concentration of hydrogen ion in it. The pH of a sample of vinegar is 3.76. Calculate the concentration of hydrogen ion in it. November 24, 2020 Category: Chapter 7 - Equilibrium , Chemistry , NCERT Exemplar Class 11 ,

What is meant by the conjugate acid-base pair? Find the co[vimeo 479428195 w=640 h=360]njugate acid/base for the following species. HNO2,CN^− ,HClO4 F^− ,OH^− ,CO3 2−and S^2−-duplicate-2 The concentration of hydrogen ion in a sample of soft drink is 3.8×10 −3 M. What is its pH value? November 24, 2020 Category: Chapter 7 - Equilibrium , [...]

Classify the following species into Lewis acids and Lewis bases and show how these act as Lewis acid/base: (a) OH (b) F −c) H + (d) BCl 3 Classify the following species into Lewis acids and Lewis bases and show how these act as Lewis acid/base: (a) OH (b) F −c) H + (d) BCl [...]

The species H2O, HCO3^-, HSO4^- NH3 can act both as bronsted acids and bases. For each case give corresponding conjugate acid and bases 2 HCO3^- HSO4^- NH3 can act both as bronsted acids and bases. For each case give corresponding conjugate acid and bases 2 The species H2O November 24, 2020 Category: Chapter 7 - [...]